The epic tale of a class struggle in twentieth century Italy, as seen through the eyes of two childhood friends on opposing sides.

A man lives a quiet live in a big house thanks to the wealth of his ancestors. Then a young woman arrives.

Gerd is a locksmith apprentice. In a dispute, he gives his boss a slap and is fired. He does not look for a new job. Instead he wants his freedom back.

Dorothea, a 16-year-old bourgeois girl from Hamburg, plays with her friends of both sexes, imitating the production of adult movies. In the end, pretending to make sex-scenes is not satisfying enough, and with a street professional, Dorothea is initiated in hard sex.

Vannina and Giacinto are a young married couple who live their relationship in an unequal way; while the girl is submissive to the will of her husband Giacinto, he sees in his bride only the personal object of his sexual satisfaction.